Kinikar, Amogh; Englmann, Thorsten G; Di Giovannantonio, Marco; Bassi, Nicolò; Xiang, Feifei; Stolz, Samuel; Widmer, Roland; Borin Barin, Gabriela; Turco, Elia; Eimre, Kristjan; Merino Díez, Néstor; Ortega-Guerrero, Andres; Feng, Xinliang; Gröning, Oliver; Pignedoli, Carlo A; Fasel, Roman; Ruffieux, Pascal (2024). Electronic Decoupling and Hole-Doping of Graphene Nanoribbons on Metal Substrates by Chloride Intercalation. ACS nano, 18(26), pp. 16622-16631. American Chemical Society 10.1021/acsnano.4c00484
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kinikar-et-al-2024-electronic-decoupling-and-hole-doping-of-graphene-nanoribbons-on-metal-substrates-by-chloride.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (6MB) |
Atomically precise graphene nanoribbons (GNRs) have a wide range of electronic properties that depend sensitively on their chemical structure. Several types of GNRs have been synthesized on metal surfaces through selective surface-catalyzed reactions. The resulting GNRs are adsorbed on the metal surface, which may lead to hybridization between the GNR orbitals and those of the substrate. This makes investigation of the intrinsic electronic properties of GNRs more difficult and also rules out capacitive gating. Here, we demonstrate the formation of a dielectric gold chloride adlayer that can intercalate underneath GNRs on the Au(111) surface. The intercalated gold chloride adlayer electronically decouples the GNRs from the metal and leads to a substantial hole-doping of the GNRs. Our results introduce an easily accessible tool in the in situ characterization of GNRs grown on Au(111) that allows for exploration of their electronic properties in a heavily hole-doped regime.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Fasel, Roman |
Subjects: |
500 Science > 570 Life sciences; biology 500 Science > 540 Chemistry |
ISSN: |
1936-086X |
Publisher: |
American Chemical Society |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
24 Jun 2024 16:51 |
Last Modified: |
03 Jul 2024 00:16 |
Publisher DOI: |
10.1021/acsnano.4c00484 |
PubMed ID: |
38904174 |
Uncontrolled Keywords: |
electronic decoupling electronic doping graphene nanoribbons intercalation on-surface synthesis |
BORIS DOI: |
10.48350/198000 |
URI: |
https://boris.unibe.ch/id/eprint/198000 |
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